package org.qianji.goosql.dql;

/**
 * 关联类型。
 * 
 * @author gmz
 * 
 */
public enum Join {

	/**
	 * 内关联
	 */
	INNER {
		@Override
		public String toString() {
			return "INNER JOIN";
		}
	},
	/**
	 * 左关联
	 */
	LEFT {
		@Override
		public String toString() {
			return "LEFT JOIN";
		}
	},
	/**
	 * 右关联
	 */
	RIGHT {
		@Override
		public String toString() {
			return "RIGHT JOIN";
		}
	},
	/**
	 * 全关联
	 */
	FULL {
		@Override
		public String toString() {
			return "FULL JOIN";
		}
	};

}
